this is an interface using a tub of water. the image is projected on to the water. watt the water is filled with some sort of salt to give it a milky experience. you can touch the water and the computer reablcts to it. you see it working like an ipad interface, in water. the image is projected from above. they also use a connect part of the microsoft game system to detect the fingers and smooth things apart and pick up icons and move them to another part of the back. it is wild. >> i love it. it is great. it is very interactive. i have to wonder, what's the application of it? is that so i can be on facebook while i'm in the bath. >> it is obvious. a game of kids, a rubber ducky. you could think about how this could work. >> raccoons got grapes. >>> last week for halloween, i wore a really cool costume thanks to something called an eye wound created by digital duds, created by mark rober. hes a member of the former offer the nasa company. the challenge for these guys was that they only had one hour to accomplish their pumpkin masterpiece. >> you know what that was? >